Invite your guests to be a 21st birthday party. Our Rainbow Celebration 21 custom invitations can be used for a save the date, an invitation or an announcement. Our Rainbow Celebration 21 personalized invitations can be customized with a choice of 12 font styles and 24 ink colors in 4 easy steps. Choose from two sizes 4" x 6" or 5" x 7" and each invitation comes with matching size envelopes. All personalized invitations are printed on high quality card stock and come with matching envelopes. There is a 10 invitation minimum and then additional invitations can be order in increments of 2 invitation increments.